2754780 has 72 divisors (see below), whose sum is σ = 8982288. Its totient is φ = 628992.

The previous prime is 2754751. The next prime is 2754803. The reversal of 2754780 is 874572.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2472 + ... + 3408.

It is an arithmetic number, because the mean of its divisors is an integer number (124754).

2^2754780 is an apocalyptic number.

2754780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2754780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4491144).

2754780 is an abundant number, since it is smaller than the sum of its proper divisors (6227508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2754780 is a wasteful number, since it uses less digits than its factorization.

2754780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 2754780 is about 1659.7529936710. The cubic root of 2754780 is about 140.1830937766.

The spelling of 2754780 in words is "two million, seven hundred fifty-four thousand, seven hundred eighty".